.background-manage-container {
    padding: 20px;
    height: 490px;
    display: flex;

    .title {
        padding-left: 8px;
        height: 30px;
        line-height: 30px;
        background: #eee;
        color: #333;
    }

    .choices {
        width: 300px;
        height: 100%;

        .absolute-box {
            height: calc(100% - 30px);
            overflow: hidden;
            width: 100%;
            position: relative;

            .background-list {
                position: absolute;
                top: 0;
                left: 0;
                right: -15px;
                bottom: 0;
                overflow: auto;
                padding-top: 10px;

                .bg-item:nth-child(2n + 1) {
                    margin-right: 10px;
                }

                .bg-item:nth-child(9) {
                    margin-bottom: 0;
                }

                .bg-item:nth-child(10) {
                    margin-bottom: 0;
                }

                .upload {
                    box-sizing: border-box;
                    border: 1px solid #eee;
                    line-height: 82px;
                    text-align: center;
                }

                .custom-bg {
                    position: relative;
                }

                #upload {
                    display: none;
                }

                .bg-item {
                    float: left;
                    width: 145px;
                    height: 82px;
                    overflow: hidden;
                    margin-bottom: 10px;
                    position: relative;
                    cursor: pointer;

                    &:hover .tools {
                        display: flex;
                    }

                    .tools {
                        display: none;
                        position: absolute;
                        left: 0;
                        top: 0;
                        right: 0;
                        bottom: 0;
                        justify-content: center;
                        align-items: center;
                        background: rgba(255, 255, 255, 0.8);

                        .btns {
                            height: 100%;
                            width: 100%;
                            line-height: 0;
                            display: flex;
                            justify-content: center;
                            align-items: center;

                            .icon {
                                font-size: 28px;
                                fill: rgb(131, 125, 125);
                                padding: 0 10px;

                                &:hover {
                                    fill: rgb(97, 207, 215);
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    .preview-box {
        margin-left: 20px;
        flex: 1;
        height: 100%;
        position: relative;

        .preview {
            margin: 10px 0;
            width: 100%;
            height: 254px;
            overflow: hidden;
            background: #eee;
            position: relative;

            .effect {
                position: absolute;
                left: 0;
                right: 0;
                top: 0;
                bottom: 0;
            }
        }

        .dynamic-bg {
            margin: 10px 0;
        }

        .dynamic-bg-blur {
            margin: 10px 0;
        }

        .btn {
            position: absolute;
            bottom: 0;
            right: 0;
        }
    }
}